Atlas - SDL_systime.c
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1/*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
4
5  This software is provided 'as-is', without any express or implied
6  warranty.  In no event will the authors be held liable for any damages
7  arising from the use of this software.
8
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12
13  1. The origin of this software must not be misrepresented; you must not
14     claim that you wrote the original software. If you use this software
15     in a product, an acknowledgment in the product documentation would be
16     appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18     misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20*/
21#include "SDL_internal.h"
22
23#ifdef SDL_TIME_VITA
24
25#include "../SDL_time_c.h"
26#include <psp2/apputil.h>
27#include <psp2/rtc.h>
28#include <psp2/system_param.h>
29
30// Sony seems to use 0001-01-01T00:00:00 as an epoch.
31#define DELTA_EPOCH_0001_OFFSET 62135596800ULL
32
33void SDL_GetSystemTimeLocalePreferences(SDL_DateFormat *df, SDL_TimeFormat *tf)
34{
35    int val;
36    SceAppUtilInitParam initParam;
37    SceAppUtilBootParam bootParam;
38    SDL_zero(initParam);
39    SDL_zero(bootParam);
40    sceAppUtilInit(&initParam, &bootParam);
41
42    if (df && sceAppUtilSystemParamGetInt(SCE_SYSTEM_PARAM_ID_DATE_FORMAT, &val) == 0) {
43        switch (val) {
44        case SCE_SYSTEM_PARAM_DATE_FORMAT_YYYYMMDD:
45            *df = SDL_DATE_FORMAT_YYYYMMDD;
46            break;
47        case SCE_SYSTEM_PARAM_DATE_FORMAT_MMDDYYYY:
48            *df = SDL_DATE_FORMAT_MMDDYYYY;
49            break;
50        case SCE_SYSTEM_PARAM_DATE_FORMAT_DDMMYYYY:
51            *df = SDL_DATE_FORMAT_DDMMYYYY;
52            break;
53        default:
54            break;
55        }
56    }
57
58    if (tf && sceAppUtilSystemParamGetInt(SCE_SYSTEM_PARAM_ID_DATE_FORMAT, &val) == 0) {
59        switch (val) {
60        case SCE_SYSTEM_PARAM_TIME_FORMAT_24HR:
61            *tf = SDL_TIME_FORMAT_24HR;
62            break;
63        case SCE_SYSTEM_PARAM_TIME_FORMAT_12HR:
64            *tf = SDL_TIME_FORMAT_12HR;
65            break;
66        default:
67            break;
68        }
69    }
70
71    sceAppUtilShutdown();
72}
73
74bool SDL_GetCurrentTime(SDL_Time *ticks)
75{
76    SceRtcTick sceTicks;
77
78    CHECK_PARAM(!ticks) {
79        return SDL_InvalidParamError("ticks");
80    }
81
82    const int ret = sceRtcGetCurrentTick(&sceTicks);
83    if (!ret) {
84        const unsigned int res = sceRtcGetTickResolution();
85        const unsigned int div = SDL_NS_PER_SECOND / res;
86        const Uint64 epoch_offset = DELTA_EPOCH_0001_OFFSET * res;
87
88        const Uint64 scetime_min = (Uint64)((SDL_MIN_TIME / div) + epoch_offset);
89        const Uint64 scetime_max = (Uint64)((SDL_MAX_TIME / div) + epoch_offset);
90
91        // Clamp to the valid SDL_Time range.
92        sceTicks.tick = SDL_clamp(sceTicks.tick, scetime_min, scetime_max);
93        *ticks = (SDL_Time)(sceTicks.tick - epoch_offset) * div;
94
95        return true;
96    }
97
98    return SDL_SetError("Failed to retrieve system time (%i)", ret);
99}
100
101bool SDL_TimeToDateTime(SDL_Time ticks, SDL_DateTime *dt, bool localTime)
102{
103    SceDateTime t;
104    SceRtcTick sceTicks, sceLocalTicks;
105    int ret = 0;
106
107    CHECK_PARAM(!dt) {
108        return SDL_InvalidParamError("dt");
109    }
110
111    const unsigned int res = sceRtcGetTickResolution();
112    const unsigned int div = (SDL_NS_PER_SECOND / res);
113    sceTicks.tick = (Uint64)((ticks / div) + (DELTA_EPOCH_0001_OFFSET * div));
114
115    if (localTime) {
116        ret = sceRtcConvertUtcToLocalTime(&sceTicks, &sceLocalTicks);
117    } else {
118        sceLocalTicks.tick = sceTicks.tick;
119    }
120
121    if (!ret) {
122        ret = sceRtcSetTick(&t, &sceLocalTicks);
123        if (!ret) {
124            dt->year = t.year;
125            dt->month = t.month;
126            dt->day = t.day;
127            dt->hour = t.hour;
128            dt->minute = t.minute;
129            dt->second = t.second;
130            dt->nanosecond = ticks % SDL_NS_PER_SECOND;
131            dt->utc_offset = (int)(((Sint64)sceLocalTicks.tick - (Sint64)sceTicks.tick) / (Sint64)res);
132
133            SDL_CivilToDays(dt->year, dt->month, dt->day, &dt->day_of_week, NULL);
134
135            return true;
136        }
137    }
138
139    return SDL_SetError("Local time conversion failed (%i)", ret);
140}
141
142#endif // SDL_TIME_VITA
143
[FILE END]
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